| 最小能量消耗的协作式MIMO功率分配算法 |
| |
| 引用本文： | 韩宇辉,孟维晓.最小能量消耗的协作式MIMO功率分配算法[J].哈尔滨工程大学学报,2012,33(3):371-376. |
| |
| 作者姓名： | 韩宇辉 孟维晓 |
| |
| 作者单位： | 1. 哈尔滨工业大学通信技术研究所,黑龙江哈尔滨150001;哈尔滨理工大学测控技术与仪器黑龙江省高校重点实验室,黑龙江哈尔滨150040
2. 哈尔滨工业大学通信技术研究所,黑龙江哈尔滨,150001 |
| |
| 基金项目： | 国家自然科学基金资助项目(60872016);新世纪优秀人才支持计划资助项目(NCET-08-0157) |
| |
| 摘 要： | 对解码转发协作式MIMO系统中的功率分配问题进行了研究.分析了系统误比特率和能量增益特性,在此基础上提出了一种基于黄金分割迭代的功率优化分配算法和2种简化的分配算法,在满足一定误比特率要求的条件下,使源节点和中继节点总的发射功率最小.考虑准静态平坦衰落信道,根据瞬时信道状态信息进行功率分配.理论分析与仿真结果表明,基于黄金分割迭代的功率优化分配算法可以以较少的迭代次数得到较高精度的最优解,而2种简化功率分配算法均可以获得与基于黄金分割迭代的功率分配算法相近的系统能量增益,并且计算的复杂度大大降低.
|
| 关 键 词： | 协作式MIMO 解码转发 功率分配 能量增益 信道状态信息 最小能量消耗 |
Power allocation algorithm for a cooperative MIMO system based on minimum energy consumption |
| |
| HAN Yuhui
,
MENG Weixiao.Power allocation algorithm for a cooperative MIMO system based on minimum energy consumption[J].Journal of Harbin Engineering University,2012,33(3):371-376. |
| |
| Authors: | HAN Yuhui MENG Weixiao |
| |
| Affiliation: | 1(1.Communication Research Center,Harbin Institute of Technology,Harbin 150001,China;2.The Higher Educational Key Laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province,Harbin University of Science and Technology,Harbin 150040,China) |
| |
| Abstract: | The power allocation for a decode-and-forward cooperative multiple input multiple output(MIMO) system was investigated.According to bit error rate analysis and energy gain performance,an optimal power allocation algorithm,which is based on the golden section iterative method,and two simplified allocation algorithms were proposed to minimize the total transmition power of the source and relay nodes on the premise of satisfying a certain bit error rate.Quasi-static,flat fading channels were considered and power was allocated according to instantaneous channel state information.Theoretical analysis and computerized simulation show that the optimal power allocation algorithm based on the golden section iterative method can obtain a high-accuracy optimal solution with little iteration;the two simplified algorithms’ energy gain performances are close to the optimal power allocation algorithm,and their complexity is reduced greatly. |
| |
| Keywords: | cooperative MIMO decode-and-forward power allocation energy gain channel state information minimum energy consumption |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
